Ear-ring fastener.



m. 6%,270. Patented Nov. 6, i900. I. MANN.

ERR RING FASTENER.

(Application filed Sept. 15, 1900.)

.(No Model.)

WITNESSES: g INVENTOR fiwflg l I, w n We!) ATTORNEY THE uoams PEYERS cu. Putnam-mo" Msnmomu. a. c.

IGNATZ MANN, OF NEW YORK, N. Y.

EAR RlNG FASTENER.

SPECIFICATION forming part of Letters Patent No. 661,271, dated November 6, 1900.

Application filed September 15, 1900. Serial No. 30,206. (No model.)

T!) (1/7] whom 1'25 may concern:

Be it known that I, IGNATZ MANN, a citizen of the United States, residing at No. 336 Fiftyfirst street, in the city of New York, (Brooklyn,) county of Kings, and State of New York, have in vented a new and useful Improvement in Ear-Ring Fasteners, of which the following is a specification.

My invention relates to a sliding screwhead on the puncture-stem of the ear-ring; and the object of my improvement is to prevent the screw-head working loose from the puncture-stem while the ear-ring is being worn. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side view of the ear-ring. Fig. 2 is a detailed view of ear-ring.

In the figures, A is the sliding screw-head, and B the puncture-stem attached to the earring setting 0.

My improvement consists in the sliding screw-head A, composed of a disk D, perforated at the center H and joined at right angles with a skeleton clip consisting of the two parallel contiguous pieces E and F, threaded at its top G in alinement with the unthreaded hole H. The puncture-stem B is threaded a short distance on its outer end, which is separated from the smooth portion by a circular groove at J, forming shoulders between the smooth and threaded portions of the stem.

In the ear-ring before my invention nothing prevented the screw-head working loose. WVith my improvement the puncture-bar I3 is inserted through the ear and slides easily through the perforated disk at H, whereupon the threaded end J is screwed through the threaded hole at G until the edges of the spring-clip slip past the depression J and firmly grip the smooth part of the stem K, on which it'is adjusted to the thickness of the ear-lobe.

If the screw-head should slide back to the threaded end, itis prevented from unscrewing without assistance of the hand by the depres sion and shoulder at the beginning of the thread.

I claim- A combination of screw-head, composed of perforated disk and threaded clip, and stem of ear-ring having smooth and threaded portions separated by a circular groove forming shoulders so adapted that when the screw head screws past the threaded portion of stem it must be sprung back by the hand past shoulder to be unscrewed, substantially as set forth.

IGNATZ MANN.

Witnesses:

ALFRED I-IEBER IIOLBROOK, ALBERT S. MEYER. 

